cathartic

nouns

a purging medicine; stimulates evacuation of the bowels
aperient, cathartic, physic, purgative

adjectives

emotionally purging
cathartic, psychotherapeutic
is derived from
catharsis
emotionally purging (of e.g. art)
cathartic, releasing
strongly laxative
cathartic, evacuant, purgative
is derived from
catharsis